Electric toothbrush head and handle unit



FIG. 1 is a perspective view of an electric toothbrush head and handle unit showing my new design;

FIG. 2 is right side elevational view thereof, the opposite side being a mirror image;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken line showing of bristles is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for an electric toothbrush head and handle unit, as shown and described. 